Table 1.

Explanation of how the (Aberdeen) obstetric classification categories were amalgamated in this work

Category	Comprised deaths due to:
Congenital anomalies	Neural tube defects
	Other anomalies
Pre-eclampsia	Pre-eclampsia without antepartum haemorrhaging
	Pre-eclampsia complicated by antepartum haemorrhaging
Antepartum haemorrhage	Antepartum haemorrhage with placental praevia
	Antepartum haemorrhage with placental abruption
	Antepartum haemorrhage of uncertain origin
Mechanical	Cord prolapsed or compression with vertex or face presentation
	Other vertex or face presentation
	Breech presentation
	Oblique or compound presentation, uterine rupture, etc.
Maternal disorder	Maternal hypertensive disease
	Other maternal disease
	Maternal infection
Miscellaneous	Isoimmunisation due to rhesus or other antigens
	Neonatal infection
	Other neonatal infection
	Specific fetal condition
Unexplained antepartum SGA	Unexplained antepartum (birth weight ≤10th centile)
Unexplained antepartum not SGA	Unexplained antepartum (birth weight >10th centile)
Unclassifiable	Unclassified
	Missing

SGA, small for gestational age.